Improved method of



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' WILLIAM H. S1NGER, OF PITTSBURG, PENNSYLVANIA:

12mm Patent-No. 85,140, dated December zaii'ses mnovnn mono: ubnme cast-swam; ro narrows-m1: or more.

l'hoiBehoduJonoznd-tofithouehettex n?ntentmdmaking To qll' wlwm itma/yconcem: s T I Be it known that I, Wmnnuu H. Smenn, of Pittsinlthe county of Allegheny, and State of Penn-- sylvania, have im ented a new' and improved Methodv of Applying Cast-Steel to Articles of Iron and I do hereby declare that. the following isa full, clear, and exact description thereof; which will enable those skilled in the art to makeand use the same This invention relates to an improvement in making iron-centre, iron-face," or iron-baok cast-steel, whereby, for the uses for which steel isintended, the", articles are equal to pure steeLj. V j Y As such steel has heretofore been made, the iron which forms centre, bank, or faee-has'been merely heated, and placed in'the mould, with the surface, of

e0urse,'oxidized, or covered-with scale, toia greater' or less extent, which scales separate fi-om the iron, and mingle with the molten steel, causing imperfections therein of aWeryseridus nature. r v

My method is'to thoroughly eleausetherilton inan 1 .put of tho lame.

- aeid bath where itis allowed to remain a suflicient length of time, when it is taken out of the bath, and placed in a lime-ba th, for the purpose of destroying ahyiieid which might remain-on the iron. From the .lime bath the iron is placed in the mould, in a, cold state, and the melted steel is poured around or in contaetwith it, as may be desire hwhile thg expense of the process is materially lessened.

Patent 1 1 The method of applyingcaststeelto-iromsubstantially as hereimdesoribed.

. Bnfnon Homes.

- By this method, the steel is kept 'olean and pure, 1

claim as new, and desire to secure by Letters .lhe above specification of ingrgign v entiousigned bf n n 

